+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Characterization of neural activity recorded from the descending tracts of the rat spinal cord

, : Characterization of neural activity recorded from the descending tracts of the rat spinal cord. Frontiers in Neuroscience 4: 21-21

A multi-electrode array (MEA) was implanted in the dorsolateral funiculus of the cervical spinal cord to record descending information during behavior in freely moving rats. Neural signals were characterized in terms of frequency and information content. Frequency analysis revealed components both at the range of local field potentials and multi-unit activity. Coherence between channels decreased steadily with inter-contact distance and frequency suggesting greater spatial selectivity for multi-unit activity compared to local field potentials. Principal component analysis (PCA) extracted multiple channels of neural activity with patterns that correlated to the behavior, indicating multiple dimensionality of the signals. Two different behaviors involving the forelimbs, face cleaning and food reaching, generated neural signals through distinctly different combination of neural channels, which suggested that these two behaviors could readily be differentiated from recordings. This preliminary data demonstrated that descending spinal cord signals recorded with MEAs can be used to extract multiple channels of command control information and potentially be utilized as a means of communication in high level spinal cord injury subjects.


PMID: 20589238

DOI: 10.3389/fnins.2010.00021

Other references

Traub, Y.M.; Shapiro, A.P.; Rodnan, G.P.; Medsger, T.A.; McDonald, R.H.; Steen, V.D.; Osial, T.A.; Tolchin, S.F., 1983: Hypertension and renal failure (scleroderma renal crisis) in progressive systemic sclerosis. Review of a 25-year experience with 68 cases. This paper reports the experiences of our group with 68 patients with progressive systemic sclerosis (PSS) admitted to hospitals of the University of Pittsburgh Health Center between 1955 and 1981 with scleroderma renal crisis (SRC). The onset of...

Deborah K.S.ith; Peter, 1990: Seafloor topography; a record of a chaotic dynamical system?. Geophysical Research Letters 17(10): 1541

Zaczek, R.; Chorvat, R.J.; Saye, J.A.; Pierdomenico, M.E.; Maciag, C.M.; Logue, A.R.; Fisher, B.N.; Rominger, D.H.; Earl, R.A., 1998: Two new potent neurotransmitter release enhancers, 10,10-bis -9 -anthracenone and 10,10-bis -9 -anthracenone Comparison to linopirdine. Linopirdine (3,3-bis(4-pyridinylmethyl)-l-phenylindolin-2-one, DUP996) is an extensively studied representative of a class of cognition enhancing compounds that increase the evoked release of neurotransmitters. Recent studies suggest that these ag...

Snow, J.R.; Jones, R.S., 1978: The effect of insulin on bile-salt-independent canalicular secretion. Mongrel dogs were prepared by cholecystectomy, ligation of the lesser pancreatic duct, and insertion of gastric and duodenal cannulas. The common bile duct was cannulated through the duodenal fistula. After stabilization of bile flow by intravenou...

Nagaraju, K.; Kirk, K.; Raben, N.; Plotz, P., 1997: Cytokine- and chemokine-induced expression of MHC class I, MHC class II, and ICAM I on normal human skeletal myoblasts. Journal of Allergy & Clinical Immunology 99(1 PART 2): S15

Bowden, R.E.M., 1951: A comparative study of the rate of atrophy of skeletal muscle following anterior ramisection and acute anterior poliomyelitis in the rhesus monkey. The effect of anterior ramisection and acute anterior poliomyelitis on the rate of muscle atrophy was studied in the rhesus monkey. In the case of ramisection the % of atrophy was estimated in terms of the same muscle on the normal side. In acute...

Chenoweth William L., 1984: Development in uranium in 1983. AAPG Bulletin 68(10): 1678-1683

Spreeuwenberg, M.D.; Willems, C.; Willems, C.; Verheesen, H.; Schols, J.; Schols, J.; de Witte, L.; de Witte, L., 2010: Dynamic lighting as a tool to influence the day-night rhythm of clients with psychogeriatric disorders: a pilot study in a Dutch nursing home. Journal of the American Geriatrics Society 58(5): 981-982

Muzzall, P.M., 1989: Endohelminths of salmonids from two localities in eastern Lake Michigan, with emphasis on Echinorhynchus salmonis. Canadian Journal of Zoology 67.6: 1604-1607

Pfeuffer, T.; Helmreich, E.J., 1988: Structural and functional relationships of guanosine triphosphate binding proteins. Information available at present documents the existence of three well-defined classes of guanine nucleotide binding proteins functioning as signal transducers: Gs and Gi which stimulate and inhibit adenylate cyclase, respectively, and transducin...